166371434 has 8 divisors (see below), whose sum is σ = 258162660. Its totient is φ = 80317216.

The previous prime is 166371431. The next prime is 166371437. The reversal of 166371434 is 434173661.

It is an interprime number because it is at equal distance from previous prime (166371431) and next prime (166371437).

It can be written as a sum of positive squares in 2 ways, for example, as 163763209 + 2608225 = 12797^2 + 1615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 166371394 and 166371403.

It is not an unprimeable number, because it can be changed into a prime (166371431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434179 + ... + 1434294.

Almost surely, 2^166371434 is an apocalyptic number.

166371434 is a deficient number, since it is larger than the sum of its proper divisors (91791226).

166371434 is a wasteful number, since it uses less digits than its factorization.

166371434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868504.

The product of its digits is 36288, while the sum is 35.

The square root of 166371434 is about 12898.5051071820. The cubic root of 166371434 is about 549.9960704953.

The spelling of 166371434 in words is "one hundred sixty-six million, three hundred seventy-one thousand, four hundred thirty-four".